Two Competitive Brothers, Who Work in Two Different Industries, Were

question 58

Multiple Choice

Two competitive brothers, who work in two different industries, were comparing their salaries. Because there is a difference of 4 years in their respective work experience, they decided to compare, not their actual salaries, but to compare their salaries against their company averages to see who is doing better. The following gives the brothers' salaries, companies' mean, and standard deviation for each company. What is the z-score of Andy's salary?

• A) -1.29
• B) 1.29
• C) -1.89
• D) 1.89
• E) None of the choices are correct.

---

Definitions:

Wrist

The joint connecting the forearm to the hand, encompassing eight small bones known as the carpal bones.

Medial Epicondyle

The bony prominence on the inner side of the humerus, to which muscles of the forearm are attached.

Lateral Epicondyle

A bony prominence on the outside (lateral side) of the humerus (upper arm bone) where tendons of the forearm muscles attach.

Flexors

Muscles that decrease the angle between bones at a joint, functioning to bend or flex a part of the body.